对具有较低碳足迹的水泥混凝土路面的性能研究
Tomasz Rudnicki1, Przemysław Stałowski2
1Faculty of Civil Engineering and Geodesy, Military University of Technology, 2 Kaliskiego St, 00-908 Warsaw, Poland.
Materials (Basel, Switzerland)
|July 13, 2024
概括
这项研究表明,低排放水泥 (CEM II,CEM III,CEM V) 为当地道路建设提供了卓越的强度和耐用性,显著减少了高达39%的碳足迹. 这些环保选择是传统CEM I水泥的可行替代品.
科学领域:
- 材料科学 材料科学 材料科学
- 土木工程 土木工程是指土木工程.
- 可持续建筑 可持续建筑
背景情况:
- 对于环境影响较小的建筑材料的需求日益增长.
- 需要评估道路建设中低排放水泥的性能.
研究的目的:
- 评估四种低排放水泥对当地道路的混凝土性能的影响.
- 验证使用CEM I,CEM II,CEM III和CEM V水泥制成的混凝土的强度特征并评估其耐用性.
主要方法:
- 对CEM I (传统) 与CEM II,CEM III,CEM V (低排放) 水泥进行比较分析.
- 强度测试 (压力强度) 和耐久性评估 (抗,抗除冰剂,水透,空气入).
- 根据PN EN 480-11对空气输入结构进行标准化测试.
主要成果:
- 90天后,CEM III和CEM V混凝土表现出优越的压力强度 (分别为70MPa和68MPa).
- 在150次冷解周期后,CEM III和CEM V混凝土的强度降低最小 (-0.9%和-1.4%).
- 优良的防水密度 (17-18毫米透) 和最佳的空气驱动结构证实了高耐用性.
- 与传统混凝土相比,碳足迹减少了36% (CEM V) 和39% (CEM III).
结论:
- 低排放水泥CEM II,CEM III和CEM V适用于当地道路建设.
- 这些水泥的强度和耐久性与传统的CEM I.提供了相似或更高的强度和耐久性.
- 显著的碳足迹减少凸显了使用这些替代水泥的可持续性益处.
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